Question

va rog !! toate exercițiile daca se poate !! dau coroana

Answer 1

1)7

2)3

3)4

4) 4/7

5)40

6)48

7)3

8)72

Answer 2

1.

10:2+2=5+2=7

2.

5x+2=17

5x=15

x=15/5

x=3

3.

mg^2=8•2=16=>mg=4

4.

P=f/p

f=4

p=7

P=4/7

5.

P=4l=4•10=40 mm

6.

A=(B+b)h/2=(4+12)6/2=16•3=48 cm^2

7.

V=4pi•r^3/3<=>36pi=4pi•r^3/3<=>9=r^3/4=>r^3=9•3=36=>r=3 cm

8.

A=36 radical3 cm^2